'No single device will be the hub,' CEO Nadella says. 'The hub is you.'

Hololens Project X-ray

One of the futuristic technologies that Microsoft unveiled was an advance in the use of holograms for gaming. Specifically, Microsoft's Hololens Project X-ray allows a user to use holograms on a head-mounted display untethered to wires or even wireless.

In a demo, Microsoft showed a user in a room in a house with high definition sci-fi monsters breaking through walls to attack the users. Sensors map a person's environment and take advantage of a unique holographic processor unit.

While the demo showed off gaming, Microsoft has previously described Hololens as a tool for industrial designers and other workplaces. Microsoft said it is taking developer applications to receive a Hololens developer kit that will be available in the first quarter of 2016 for $3,000.